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PENTAX smc BIRDS-EYE 1:2.8 8.4 mm

Pentax prototype, 1982.


Prototype, Pentax K mount, presented in Photokina 1982. No focus ring, manual diafragm. Seems 2 prototypes are known to exist, one named Bird’s eye and one fish-eye.
The only image available is coming from some magazine, all the information are coming from pentaxians.eu and aohc.it.

an abstract from a coastal optical system pdf analyzing all interesting fisheye patents. This should be the Pentax 8.4mm

Lens info
Manufacturer:
Focal Length:
Camera Format:
Lens Type:
Lens FOV:

Lens Mount:
Lens Hood:
None
Filter Type:
None
Lens Elements / Groups:
10 / 7
Image Circle:
Dimensions:
Weight:
Years Manufactered:
TBD - TBD

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